Sonic 2099

Chaotix of Tomorrow is a fan made Sonic RPG made by Magnus Andersson using RPG Maker 2000, it stars the Chaotix crew featuring the return of Mighty. The game was later updated in 2006 to add better graphics and new features. The creator originally did not plan to create a sequel to the game, but a sequel was made anyway titled Twisted Mettle.

Tails and the Quest of 100 Rings is a fan game created by Magnus Andersson (aka mightydillo). A demo was initially released publicly with one zone in 1997. It was only the second Klik & Play Sonic-based fan game to ever hit the internet. A completed version was released in mid-1998. A demo for this game was released in the Sonic Klik & Play Collection.

Sonic Boom was the first Klik & Play Sonic fan game to hit the internet. It was created by Martin Braid in 1995. The initial release had a virus, so it was taken down temporarily. It was re-released in 1996 by Magnus Andersson. Due to the open-sourced nature of Klik and Play, Sonic Boom later re-appeared in saxman's Sonic Klik & Play Collection along with demos of Sonic PC and Tails and the Quest of 100 Rings. It was also re-released as Rotor Boom by Ian Klukan, the Archie character Rotor Walrus replacing Sonic.

Dive into a frantic race with Sonic, the legendary blue hedgehog! Defy the laws of physics through twisted worlds to save your animal friends captured by Doctor Robotnik. Get ready to jump, turn and cross all obstacles in this epic adventure to save the world and free the innocent creatures! Are you ready to roar, push the limits and become the ultimate hero? It's time to show your super speed and kick Robotnik's butt.

Open Sonic is an open-source game based on the "Sonic the Hedgehog" universe. It introduces a different style of gameplay called cooperative play, in which it's possible to control 3 characters simultaneously. Unlike most similar games, Open Sonic provides a greater level of interaction between the player and the levels. It's more than just a jump'n'run; the user must come up with some strategy in order to get through the levels.

Sonic Frenzy Adventure is a retro-style fangame developed since 2004, featuring 11 zones and 5 playable characters, including two original ones. The game introduces unique mechanics such as a revised ring system with four levels, various shields with passive effects, and special powers exclusive to Sonic. Players explore each zone, ending in a boss fight, with a storyline focused on defeating EggRobo's mechanical empire. Achievements track high scores and hidden collectibles, and the game offers character-specific routes and challenges.

Rockman ZX Prequel is a Mega Man ZX fangame created by the Chinese group Rockman Lab, set between the events of the Mega Man Zero and Mega Man ZX series. Unlike the ZX series, there are only two playable Biometals.

Roam around freely in Wuhu Island without any restrictions.